Question

if A and B are sets and A U B = A INTERSECTION B , THEN ; a)A=empty set b)B=empty set c)A = B D)none of these

Answer 1

Answer:

A=B

Step-by-step explanation:

If AUB =AnB then A=B

consider two sets A={1,2} and B={2,1}

AUB ={1,2}U{2,1}={1,2}

AnB ={1,2}n{2,1}={1,2}